Multivariate statistically-based modelling of a membrane bioreactor for wastewater treatment using 2D fluorescence monitoring data

Water Research
C F GalinhaJoão P Crespo

Abstract

This work presents the development of multivariate statistically-based models for monitoring several key performance parameters of membrane bioreactors (MBR) for wastewater treatment. This non-mechanistic approach enabled the deconvolution of 2D fluorescence spectroscopy data, a powerful technique that has previously been shown to capture important information regarding MBR performance. Projection to latent structure (PLS) modelling was used to integrate 2D fluorescence data, after compression through parallel factor analysis (PARAFAC), with operation and analytical data to describe an MBR fouling indicator (transmembrane pressure, TMP), five descriptors of the effluent quality (total COD, soluble COD, concentration of nitrite and nitrate, total nitrogen and total phosphorus in the permeate) and the biomass concentration in the bioreactor (MLSS). A multilinear correlation was successfully established for TMP, CODtp and CODsp, whereas the optimised models for the remaining outputs included quadratic and interaction terms of the compressed 2D fluorescence matrices. Additionally, the coefficients of the optimised models revealed important contributions of some of the input parameters to the modelled outputs. This work demonstrates...Continue Reading

References

Sep 7, 2004·Analytical and Bioanalytical Chemistry·M ForinaC Pizarro Millan
Feb 13, 2007·Journal of Biotechnology·Gundula WolfMaria A M Reis
Jan 15, 2008·Trends in Biotechnology·Simon Judd
Jan 20, 2011·Water Science and Technology : a Journal of the International Association on Water Pollution Research·B LesjeanH Buisson
Apr 22, 2011·Water Science and Technology : a Journal of the International Association on Water Pollution Research·C F GalinhaM A M Reis

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Citations

Jul 17, 2012·Journal of Biotechnology·Claudia F GalinhaMaria A M Reis
Aug 27, 2021·Membranes·Claudia F Galinha, João G Crespo

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